Extension-table.



L. J. CHAPMAN.

EXTENSION TABLE.

APPLICATION FILED APR.'10. 1908 1,099,787. Patented June 9, 1914.

Z SHEETS-311E111 1.

L. J. CHAPMAN.

EXTENSION TABLE.

APPLICATION FILED APR. 10, 1903,

Patented June 9, 1914.

'simple and readily applicable to the ordi- UNITED srnrnsrnrnnr orr on.

LIONEL 3. CHAPMAN. 0F HANOVER, PENNSYLVANIA, ASEEIGNQR- TO THE LONGFURNI- TURE 00., OF HANOVER, PENHSYLVANIA, A COHPDRATION OFPENNSYLVANIA.

EXTENSION-TABLE.

Specification of Letters Patent.

Application filed April it 1908.

Patented June 9, 1914. Ecrial l lo. 1%,3753.

To all whom it may concern Be it known that I, LIONEL J. CHAPMAN, acitizen of the United States, residing; at Hanover, in the copnty ofYork and State of Pennsylvania, have invented a new and usefulExtension-Table, of whin the following is a specification. p

This invention relates more particularly to pedestal tables, thoughthere are features probably useful in connection with extension tablesof other ty Jes. The primary object of the present inven tion is toprovide novel, simple and effective means whereby upon the movement ofeither top end section,'the other end section will be moved-in anopposite direction so that the table will always be properly extendedand contracted and the pedestal or other support will be properlycentered with respect thereto, the structure moreover being nary type oftable without material altera tions therein.

The preferred embodiment of the invention is illustrated in theaccompanying d rawings, wherein b Figure 1 is a bottom plan View oi. thetable top with the pedestal shown in sec tion. Fig. 2 is a detailsectional View on the line2--2 of Fig. 1. Fig. 3 is a sectional view onthe line 3-3 of Fig. 1. Fig. 4 is a detail cross sectional View on theline of Fig. 1. 7

Similar reference numerals designate corresponding parts in all thefigures of the drawings.

In the embodiment disclosed, a center or supporting member is employedcomprising a pedestal 5 carrying on its upper end a buck frame composedof crossed lltll'S 6. Spaced parallel slides 7 are fixedto the ends ofthe crossed bars 6 by screws '3 or other suitable fasteners. The tabletop comprises separable end sections 8 having sets of slides S) that arerespectively and slidahl y engaged nor well understood to those skilledin this art. So far as thus'described, nothing is claimed for the table,the structure being well known and being open to a serious objectiou,that is to say, either end section of the top may be drawn outindependently of the other end. Oonseqitiently it often hantoned.

pens that it' the top extended, the pedestal V will be at one side ofthe center that not I I only is the symmetry of said table destroyed,

but the top is improperly supported. Moreover it is very diliicult forone person to open and close the table, and ordinarily two are required.In order to eliminate this objectionable feature, the followingmechanism is preferably employed. It will be ob served particularly byreference to Fig. 4 that the center or intermediate slide 7 of eachset-is wider than the outer slides, and secured, to the lower faces ofsaid outer slides, are racks 10, the fasteners therefor being shown at11. The teeth of these racks are oppositely disposed. Clihe centerslides 7 have the central portions of their under sides cut away, asshown at 12, and journaled in said cut away portions are gears 13, whichare in mesh with the racks. The j0urnals for said gears are screws orother headed fasteners i l, which also serve tohold the gears in place.With this construction, it will be evident that if one of the endsections 8 or the top is drawn outwardly, the slides tl'iercoil will bemoved in :1 corresponding direction, and the racks carried by saidslides will therefore cause the rotation of the gears 13. Those gearsbeing in mesh with the end sections, will. effect the movements of saidother slides in an opposite direction. 'lherefore the other end sectionwill be moved outwardly a corresponding distance. The result is that thepedestal will always be centered, the symmetry of the table will not bedestroyed, and the table top can be extended and contracted by oneperson. One of the principal features of this invention resides in thearrangement of the raclcbars along the underside of the slides 9 towhich they are rigidly secured. As shown in Fig. 3, the rack bars areslightly narrower than the width of the slid cs to which they arefasllflorcover, the gear wheels 13 are wider than the fixed slide rails7, so that their teeth overlap the adjacent slides 9, the meshing of theteeth of the gear wheels and racks being to one side of the line ofseparation of the slides and 9.

From the foregoing, it thought that the construction, operation. andmany advan tones of the herein described invention will be apparent tothose skilled in the art, without :tm'thcr description, and it will beunderstood that various hanger; in the size, shape,

racks on the slides of the opposite roportion, andvminor details ofconstriiction, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

' Having thus fully described my invention,

what I claim'asnew, and desire to. secure by Letters Patent, is

1.- In an extension table, the combination with the central verticalsupport, and a pair offixed spaced slide rails located one on eitherside of the support and carried thereby, of a table top comprisingseparable end sections, apair of opposed slide rails be- I rail sectionnear the middle thereof, and

fixed racks on the bottom of each end slide neath each end section, saidsliding rails being attached thereto and projecting therefrom, theslide-rails of the end sections slidably contacting at their sides withthe fixed.

slide rails, gear Wheels rotatable in a horizontal plane and mounted oneach fixed slide secured to one end section and slidaloly engaging theopposed innerfaces of the slide rails, a pair of spaced rails secured tothe other end section and slidablyengaging the outer faces of the sliderails, a verticallydisposed, rigidly-mounted pivot on each fixed sliderail at approximately the center thereof a pinion mounted on each pivotand having a diameter greater than the Width of the fixed slide rails soas to extend heyond'the opposite edges of the slide rails andoverlap therails of the table top sections, and rack bars arranged along andsecured rigidly to the bottom of the rails of the table top sections andhaving a diameter less than the Width of the said rails and meshing withthe pinion's for causing simul taneous movement of the table sectionsupon the movement of either table section.

In testimony, that I claim the foregoing as my own, I'have heretoaiiixed' my signature in the presence of two Witnesses.

Witnesses:

H. M. Barron, GUY W. BANGE.

